Starter motor not engaging (inertial type)

[PierreW]

For those to whom this has already happened, here is a solution to avoid having to dismantle everything. Just drill a hole of about 4-5mm on the top of the clutch bell as pictured. This will allow you to inject lubricant on the starter pinion assembly with an aerosol can. I used a Teflon spray....miracle! I had to make an extended drill bit to get there. No problem!
Perhaps there is another location for the hole from below ...I didn't try

Hope this can help....